随着晶体-单元体尺寸比的增加,试样晶内接触数量占总接触数量的比值逐渐上升并趋于稳定,而晶间接触占比则相应减小.试样破坏后产生的晶内裂纹数量占总裂纹数量的比值逐渐增大,导致试样发生宏观断裂时所需的外部荷载值上升,因此其动态抗拉强度上升且逐渐趋于稳定.PFC3D-GBM在研究晶质性岩石动力学方面具有可行性,是从矿物...
【PFC6.0.30】三维Cluster模拟GBM矿物晶粒岩石单轴 0 引言 首先祝大家劳动节快乐,劳动人民最光荣! 这应该是cluster目前最后一个应用场景了。 离散元的模拟思路是从微观力学行为去反映宏观特性,在这个过程中,能够实现的现实的因素越多,得到的力学行为也就越准确。所以我们很多人去做柔性三轴,并不是为了去研究力学特性...
In this study, the mechanical properties and fracture evolution mechanisms of Jinping marble under true triaxial stress states (σ2, σ3) were studied by true triaxial tests and PFC3D-GBM numerical simulations from the aspects of the stress–strain curves, strength characteristics, macro- and micro...
True triaxial test and PFC3D-GBM simulation study on mechanical properties and fracture evolution mechanisms of rock under high stresses Computers and Geotechnics Volume 154,February 2023, Page 105136 Purchase options CorporateFor R&D professionals working in corporate organizations. ...
(PFC),i.e.PFC3D-GBM,is proposed.This model can accomplish the grouping of mineral grains at the 3D scale and then filling them.Then,the effect of the position distribution,geometric size,and volume composite of mineral grains on the cracking behaviour and macroscopic prope...